A "machine gun" is a
weapon of any description, irrespective of size, by whatever name known,
loaded or unloaded, from which a number of shots or bullets may be
rapidly or automatically discharged from a magazine with one continuous
pull of the trigger and includes a submachine gun.

Source:
General Statutes § 53a-3 (15) (applies to Penal Code).

Commentary:
See the glossary entry for "firearm."

General Statutes §
53-202 (a) (1), which regulates the possession of machine guns, contains the
following definition: "Machine gun" shall apply to and include a weapon
of any description, loaded or unloaded, which shoots, is designed to
shoot or can be readily restored to shoot automatically more than one
projectile, without manual reloading, by a single function of the
trigger, and shall also include any part or combination of parts
designed for use in converting a weapon into a machine gun and any
combination of parts from which a machine gun can be assembled if such
parts are in the possession of or under the control of a person.